---------------------- end of first case for direct maps only ----------------

Unfortunatly the "-null" special map does not work for indirect maps.
The solution for indirect maps is the following:
Move your /home/`hostname` on all nodes to somewhere else like /home/local,
(make sure you have no node called local in your net). Then mount everything
using one indirect map. The & will map to the * in the indirect map and you'll
get all the <nodenames>:/home/local mounted in /home/<nodename> every where.

----------------------- end of second case for indirect maps only ------------
WARNING: To test the second variation, as I would like to finally have it, I would
have had to change fstab mount points of all my /dev/sd0h disks, so I didn't.